Coating composition and lubricated metal sheets
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United States of America Patent
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Apr 15, 2003
Grant Date -
N/A
app pub date -
Jun 14, 2000
filing date -
Oct 14, 1998
priority date (Note) -
Expired
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Abstract
The coating composition includes a methacrylic resin prepared by copolymerization of styrene or a substituted styrene (A), a methacrylic ester obtained from an alcohol having at least two carbon atoms and methacrylic acid (B), and an olefinic compound having at least one carboxylic group (C), in which the molar ratio thereof is 1:(0.05 to 44.5):(0.12 to 13). A metal sheet lubricated with the coating composition has superior characteristics of dissolution of the film in an alkaline solution, chemical processing, paint dryness, blocking resistance, corrosion resistance, stability of coating composition, and press formability (powdering resistance and galling resistance).
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